Czochralski Ruby Cut Stone "The Red Stone of Aja" rings cobalt spinel is also valuable

cobalt spinel is also valuable in industry

Some of these stones have zones of pink fluorescence combined with yellow

We have colorless sapphire grown for technical use (like lenses and sensor windows)

This is a custom pixel cut blue laser garnet (Ytterbium YAG) that I cut myself to resemble a real life Minecraft diamond

The light dichroic stone weighs in at  and the dark one weighs in at

Czochralski Ruby Cut Stone "The Red Stone of Aja" rings cobalt spinel is also valuableThis is a shield shaped lab ruby weighing 16. 3 ct and measuring 17 x 14mm. I cut this one myself in my 'Red Stone of Aja' design. I've been wanting to cut one of these for years, but my previous design attempts just didn't quite work. I finally got a version I was happy with and I like how it came out I also rounded the girdle which I haven't done before. Note the stone does have a few bubbles and surface imperfections, so even if inserted into a